Search  for anything...

Mr Heater 4000 to 18000 BTU 3 Setting Portable LP Gas Heater Unit with Dual Tank Connection for Indoor and Outdoor Use, Black/Red

  • Based on 5,089 reviews
Condition: New
Checking for product changes
$119.99 Why this price?
New Year Deal · 22% off was $153.08

Buy Now, Pay Later


As low as $20.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jan 28
Order within 14 hours and 19 minutes
Available payment plans shown during checkout

Style: Space Heater


Features

  • Propane Tank Heater: Heat up your camping or picnic area, porch, shed, and more with a handy propane heater with variable settings for custom warmth anytime, anywhere you bring it
  • Heat Levels: Gives off 4,000, 9,000, or 18,000 BTU per hour with a 450-square feet heat range and can be used with propane tanks up to 40 lbs with the use of an additional hose and filter
  • Simple Usage: Single control start knob allows easy usage with a piezo sparking mechanism for reliability with automatic safety shutoff in case the patio heater tips over
  • Possible Connections: Can connect to a pair of 1 lb propane tanks with 2 swivel regulators for a remote gas supply for your outdoor heater; Hose, filter, batteries, and propane are not included
  • Possible Connections: Can connect to a pair of 1 lb propane tanks with 2 swivel regulators for a remote gas supply for your outdoor heater; Hose, filter, batteries, and propane are not included

Description

Cold campsites and frozen lakes call for the warmth of a Big Buddy heater. For your next excursion, the Big Buddy will keep you comfortable with up to 18,000 BTU of heat. Swivel regulators make for easy setup; just screw on two 1-lb propane cylinders or connect to a 20-lb tank using Buddy accessories. The 450 square feet of coverage makes any ice shanty a sauna and any deck a sunroom. With the heaters Life Safety System you won’t sweat too much knowing the oxygen depletion sensor, thermal shut-down system, and tip-over switch are keeping you safe. For all of your indoor and outdoor adventures, the Big Buddy is there for you.

Brand: Mr. Heater


Special Feature: Portable, Low-Oxygen Safety Shutoff, Tip-over Protection


Color: Red


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor


Brand: Mr. Heater


Special Feature: Portable, Low-Oxygen Safety Shutoff, Tip-over Protection


Color: Red


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor


Product Dimensions: 16.7"D x 11.2"W x 12"H


Recommended Uses For Product: Office, Garden, Garage, Desk, Greenhouse, Patio, Home


Mounting Type: Floor Mount


Room Type: Living Room, Bedroom, Home Office, Study Room, Dining Room


Heating Coverage: 400 square feet


Burner type: Radiant


Fuel Type: Propane


Number of Speeds: 3


UPC: 089301004825


Global Trade Identification Number: 25


Item Weight: 15 pounds


Department: unisex-adult


Manufacturer: Enerco Group Inc.


Country of Origin: China


Item model number: MH18B


Finish types: Polished


Care instructions: Please follow user manual for instructions


Assembly required: No


Number of pieces: 1


Warranty Description: 1 year manufacturer


Batteries required: No


Included Components: Heater, manual


Import: Made in the USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jan 28

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • quality product
Style: Space Heater
works well, using to heat attached garage (with proper venting of course). Surprised that low / med / high settings go from low: one burner fully burning; medium: same one fully burner, plus 2nd burner on low. high: both burners fully burning. It seems over time initial burner would have more usage and fail first. Overall pleased with the product and performance. Good value (with Prime) as always on Amzn, in this case about 80% of local home improvement store price. ... show more
Reviewed in the United States on December 27, 2024 by Janine O

  • Mr. Heater Big Buddy Heater, 4,000 to 18,000 BTU Propane Heater
Style: Space Heater
I purchased this product because despite running two very efficient and very expensive heat pumps, my home was always cold. Additionally, my electric bill was becoming more and more outrageous. I was hopeful that the Mr. Heater Big Buddy Heater would at least be able to heat up my bedroom and also be able to heat up the master bathroom for showers and such. That said, I have been extraordinarily happy with the performance of the Big Buddy Heater. The heat output can be tailored to the exact needs of the moment, there are no unpleasant smells produced by the heater, and the fact that it puts out infrared heat makes it very pleasant to be near when the room is chilly. The heater is very easy to start with its piezo igniter and the heat produced is infinitely adjustable from low (4,000 BTU) to high (18,000 BTU). While the model I purchased did not come with the built-in heat distribution fan, I was able to add the factory fan with a purchase through Amazon (Mr. Heater Big Buddy Heater Back Cover Fan (E78404) (www.amazon.com/gp/product/B09S16JL8G)). I would recommend that everyone purchase the new Big Buddy Pro model that does come with the factory built-in fan. I use the Mr. Heater 6-Volt Power Adapter to power my heater's newly added fan (www.amazon.com/gp/product/B000HE6OAE). I also use the Mr. Heater 12' Hose with Regulator & Quick Disconnect (F271803) (www.amazon.com/12ft-Big-Buddy-Hose-Regulator/dp/B000UC7966) to supply low-pressure propane to my heater. I have found the Big Buddy Heater to be very efficient in its use of propane. It has saved me a great deal of money by not having to use my heat pumps to stay warm. In summary, I have been overwhelmingly happy with my Mr. Heater Big Buddy Heater purchase. I have had no problems of any kind with the product. Further, I have been so happy with the performance of the heater that I have purchased a second one. Mr. Heater should be very proud of this product. ... show more
Reviewed in the United States on April 6, 2024 by J. Harris

  • Spectacular heater
Style: Space Heater
Super fast shipping. Easy to use. Well made. Works great
Reviewed in the United States on January 7, 2025 by Scott's stuff

  • WARM!!
Style: Space Heater
Bought this to keep my garage electric bill down. I have an electric heater in my garage and the price of electricity keeps going up. Thought this might help supplement the heat while I’m in the garage working and lessen the burden on the electric heater. IT WORKS! Heats fast and once it is at the desired temperature I turn it to low. My electric heater never comes on while I’m working. Usually keep temp about 45 when I’m not working and 65-70 while I’m in garage. Had it for about 3 weeks. I highly recommend getting both the filter and hose if you are going to use a 20lb tank. I didn’t and found out the other reviewers were correct when they advised to do so. Bought both after lots of troubleshooting. Easy fix for a simple problem that I was too stubborn to listen to from those who had already solved it. ... show more
Reviewed in the United States on December 7, 2024 by NDGuy

  • Puts out a lot of heat.
Style: Space Heater
I use this hooked up to a 20lb tank with the optional hose, in a 12x12 shed with a high roof and no insulation. On high it’s a ton of heat, on low it’s like a small electric heater. But, heating up the shed is no small task, it takes a while as the heat is right around the unit and you lose most of it rising straight up. I ordered a fan to help heat the lower area more efficiently. So far, using the 20lb, I’m at about 20 hours mostly on high, over 3 days, but that’s not exact and shouldn’t be trusted, however, it lasts a lot longer than my kero torpedo. I’ve seen a few reviews about lighting. I have no problem, lights easily every time. It’s a good quality heater that puts out a ton of heat. I took one star off as even the cheap electric heaters come with a fan, this absolutely should too. edit: I finally got the thermoelectric fan and it makes this unit so much better at heating up a room. Update: coldest day yet since I’ve had it, 33f and windy in same shed mentioned above. Over the course of an hour it went from 33 to 50, 1.5 hours 57 degrees and still rising. You need the fan though. Update: lighting has become an issue. Hold for 30 sec and pilot light immediately but goes out after a minute. Then hold again for 30 sec and it takes another 5 minutes to start. It’s annoying but works well. ... show more
Reviewed in the United States on November 26, 2023 by Jason Jason

  • LP heater, Big Buddy
Style: Space Heater
Bought as a gift, nice for a shop or garage. Seems safe, unvented. Pretty simple, lights with a built in sparker, requires 2 1lb tanks or convert one side tank to a 20 lb grill tank. Nice!
Reviewed in the United States on January 16, 2025 by Carolyn

  • Love Mr Heater Buddy.
Style: Space Heater
A few years ago I purchased a Big Buddy Heater from a different retailer and liked it but it turned out they didn't send me the big buddy but the regular buddy heater. My the time I realized I had been using it for two years so wasn't much I could do. This winter I was planning some cold weather camping and needed more heat so I ordered the big buddy and was sent the correct model. I now have both and the Big Buddy can put off some serious heat, plus I can use both if the need is extreme. These things are great but be careful and keep a fire blanket handy. They are safe indoors but not if you are careless. I know people who have done things like tossing blankets that catch on fire. Treat them with respect and they will keep you warm. I also recommend a hose and filter to connect a large tank. The small 1lb tanks will get costly and most shouldn't be refilled. I have several 20lb BBQ size tanks but the bigger ones could be even better if you can carry them. ... show more
Reviewed in the United States on January 16, 2025 by TuuS

  • Easy to operate!
Style: Space Heater
I have two of these now. I bought the first one and liked it sooo well that I immediately purchased a second. Seems GREAT to me. Thanks.
Reviewed in the United States on December 18, 2024 by LIVE to EAT

Can't find a product?

Find it on Amazon first, then paste the link below.